Combination gear and wheel puller



March z3 1926. LeT/'8,174

B. E. ROBINSON EI' AL l COMBINATION GEAR AND WHEEL FULLER Filed May s,1925 2 Sheets-Sheet l HIIIIINIWI March 23 ,'1926. 1,578,174

B. E. `ROBINSON ET AL COMBINATION GEAR AND WHEEL FULLER Filed May 8,1925 2 Sheets-Sheet 2 r vide,

Patented Mar. 23, 1926.

Tiff imam)v -BIENJ'ANIIN' E. RBINSON AND ROBERT TRQBAUGH, OF TULSA,OKLAHOMA.

COMBINATION GEAR AND WHEEL PULLER.

Application filed May 8, 1925. Serial No. 28,923.`

T0 all 1li/710m. may concer/ni.'

Be it known that we, BENJAMI;Y iNsoN and Ronnirr A. TROBAUGH, citizensof the United States, residing in the city andv county of 'lulsa andState of Oklahoma, have invented certain new and useful lmproveiiient-sYVheel Pullers, of which the following is a specification.

rIhis invention. relates to'a tool oi' imple-V 'inent known generally asa wlieelpuller, but it is to be understood that this terni is not usedin its restrictive sense, because the device is capable of utility forpurposes other than conveyed by the expression, and the object oftherinvention is to provide, in a manner as hereinafter set forth, adevice ofthe characterreferred to, with mea-ns for removing wheels,gears, spindles, etc., and which will be as nearly universall aspossibleinl respect to application of objects or elements of this natureof different shapes, construction. Y

A further object of the invention is to proin a -man'ner as hereinafterset forth, a device of the character referred to, with a plurality ofremovable clamping elements which can bereadily replaced when worn.

Further objects of the invention are to provide, in a manner ashereinafter set forth, a tool or implement of the character referred to,which is simple in its const-ruction and arrangement, strong,durable,icoin pact, thoroughly efficient and convenient inv its use,readily set up, and comparatively inexpensive to manufacture.

lVith the foregoing and view, the invention consists lof the novelconstruction,'combination and arrangement ot parts, as hereinafter morespecifically described drawings, wherein is shown an embodiment of theinvention, but it is to be understood thatV changes, variations andmodifications can be resorted to which come within the j j` ly referredto.' The forward end each ot scope of the claims hereunto appended.

In the drawings wherein like reference characters, denote correspondingparts,

throughout the several views :--Y l' Figure 1 is a section von line 1-1,Figure 2.

Figure :implement in accordance with this invention. Fioure 3 is a`perspective of a hub slain@ ing' elemente n. Y nos;

in Combination Gears and,

sizes and other objects and illustrated in the accompanying each other.

2. is a frontelevation ofa tool or'v Figure 4 is; a fragmentary view ofvthe body portion of the toolor implement provi'ded'with a gear clampingelement, the latter being shown in section.

Figure 5 is a'sect-ionon line 5-5, Figure`4. n

Figure 6 is a fragmentary view of the body portion 0f the tool or-in'ipleinent prov videdwith a radius increasing attachment carrying agear clamping element.

Figure 7 is a fragmentary view of the body portion of the t'ool orimplement illustrating a modified forni of gear clamping means. i

Referring to the drawings in detail, 1 denotes a cylindrical taperinghead piece, having formed integral with the end of larger diameterVthereof four pair of substantially triangular-shaped arms", The arms ofone pair are indicated 'at 2, 3,the arms of another pair at 4, 5, thearms of another pair at 6,

'7, and the arms of the remaining pair at 8,

9. The pairs of arms are Vradially disposed vwith respect to the headpiece l, andthe arms of each pair are spaced from each other.- The outercorners at the forward ends of the arms 2, 33,

mergefrespecti'vely in the outer corners of s the forward ends of thearms 9, 4, as at 10'.' 1l. The outer corners at the forward ends oflthe-arms 5, 8, merge respectively in the outer corners of the forwardends of the arms 6, 7, as at 12, 13. of each of said arms are of greaterwidth than the rear ends thereof and the outer edges of said arms formcontinuations of the outer periphery of the head piece 1.

The inner side of each of said arms, at its forward end, is formed witha rib 14'of a length equa-l to the width o-f the arm at the saidend, andsaid rib 14 forms a shoulder 15'. The ribs ofv each pair of arms oppose'The ribs of each pair of armsprovide a pair of combined guides andretainers for a clamping element to be presenttlie arms,'a t the outerside thereof, is pro` vided with an extension 16 of materially lessIwidth than the width of said end.

Formed integral Vwiththe forward end of each pai-r of arms,at the outerportion theren of, and extended forwardly therefrom is anapertured'bos's'whaving the wall of, its'Y open=` ng threaded. The saidbesace are dieA @sed at aight angles wat, respiri, to the *errant Theforward ends vof the bosses.

edges of said arms, and the boss formed integral with the arnis 2, 3 isindicated at 17, that formed integral with the arms 4, 5, at 18, thatformed integral with the arms 6, 7 at 19, and that formed integral withthe arms 8, 9 at 20. The opening formed in caen of said bosses isindicated at 21. The outer side .of each boss is flush with the outeredge of that pair of arms with which it is formed'integral. rlheextensions 16-of the arms are formed integral with the bosses andproject inwardly therefrom. The extensions are of less height than theheight of the bosses.

The bosses are connected togetherby a series of inclined brace members22,23, 24

f and and. said brace members are formed integral with the extensions 16and the sides rl`he brace member 22 is arranged between the bosses 17,18, the brace member 23 between the bosses 18,19, the brace member 24lbetween the bosses 19 and 20, and the brace member 25 between thebosses 2O and 17.

rThe head piece 1 is formed vwith a centrally disposed opening 26 havingthe wall thereof threaded, and extending through the opening` L6 andtlireadedly engaging withthe wall thereof is a forcing element having aplane cylindrical inner end 27 formed with an entering point 28,centrally thereof, and which projects forwardly therefrom. VThe forcingelement further includes aninterlmediate peripherally threaded. portion29 and a rear end portion 30 having a part thereof of polygonal contour,as indicated: at 31, for the reception of a suitable tool or` implementfor adjusting the forcing element.

Threadedly engaging with each of the bosses is an adjusting member 32formed,

with a peripherally grooved inner end por-V tion 33, a peripherallythreaded intermedi-k T-shaped projection 40. The flanges 38 and i 39provide means for connecting the clamping element tothe inner endportion of an adjusting member, andthe extension 40 prolvides means forslidably connecting the clamping velement to the ribs of a pair of4 armswhen th.eclainping element is shiftedv by an adjusting member. In Figure1 of the drawings, a pair of hub clamping mem-` bers is illustrated inclamping engagement with the hub 41 of a wheel mounted on a spindle 42,and with the entering point 28 of the forcing member seated inthe end ofthe spindle.

Nrlhe adjusting members provide means whereby the hub clamping elementscan be employed 4with hubs of varying diameters.

lVlien the hub clamping elements are posi'- tioned in clampingengagement with the hub 41, the forcing member is adjusted inwardlv andsuch movement will provide for the pulling oil1V of the hub 41 from thespindle 42. A In Figures 4 and 5 of the drawings, there is illustrated agear clamping element and when employed, the clamping elements areremoved.

The` gear clamping element consists of an interiorly threaded socketforming member 43 peripherally grooved, as at 44, for the reception of apair of opposed ribs 14. Threadedly engaging `with the member 43 is anadjusting bar 45 carrying a right angularly disposed'gripping linger46.The bar 45 is adjustable relative to-the member 43-V and is secured inadjusted position by a lock nut 47 carried thereby. r l

Figure 6 illustrates an attachment for eir-V tending the range of thepuller beyond the radius of the bosses, and said device coinpriscs anarm 48 bifurcated at 49 and shouldered, as at 50, and which provides.means for connectingl a clamping element therewith. The arm 48 isfoi'medwith a T-sliaped extension 51,adapted to` be connected with pairof. arms through the medium of the ribs 1 14. Vhen the attachment is inposition, the

extension 51 abuts against the boss as shown in Figure 6, and theclampingelement cai'- ried by the arm 48 and which is indicated at 52,is arrangedexteriorly of and spaced from a boss.v

For pulling ofi7 timing gears that cannot be reached b-ya gear clampingelement, andate portion 34 and a polygonal'-shapedV head The innerportion 33 provides meansv with such gears having an opening formed withthreaded walls for the purpose of attaching bolts therewith to pull thegears, a, block 53 and a headed bolt 54 are employed. rlhe block 53 ispositioned against. a. pair of ribs 14 andthe bolt 54 extendedthroughthe bloclrand the arms with which the ribs 4are formed integra-l, andthe bolt 54 is then se-A cured in the aperture. of the timing gear 5c.

After the clamping elements have been mounted in position, whether saidelements be employed forl removing auton'iobile or other wheels, theforcing element is operated and which acting in connection with theyclamping elements will pull ofi' the wheel.

navarra increased, depending on thenumber of sides the main case. Whenremoving truck wheels or for larger gears, preferably Vthe main casewill be heX-agonalor octago-nal i-n contour.

The threadedhub clamping elements will be constructed ofvaryingsizes'and with any number of threads to the inch as will suit thedifferent requirements. The inner ends of the adjusting members will beconstructed in any suitable manner to connect with the clamping elementsto adjust the same,

but the connection will be such as to allow the adjusting members 'torotate when shifting a clamping element. The reduced part on the outerend of the forcing member is placed there for the purpose of strikingwith a` hammer or sledge. A strong tension is had on the forcing memberand in cases where the wheel or gear is exceptionally diicult `toremove, a blow with thefhammer on vthis reduced part will help to breakthe bond between the axle and hub. The forcing member is to be threadedany style, such as buttress, V, square, acme, etc., and any number tothe inch as may be required by the nature of the work to be performed.The entering point on the inner end of the forcing member is forcentering it on the end of the spindle or axle and tits in the lathcenter placed there for the purpose of machining the axle inmanufacture.

lt is thought that the many advantages of a tool or implement, inaccordance with this invention, and for the purpose set forth, can bereadily understood, and although the preferred embodiment of theinvention is as illustrated and described, yet it is to be understoodthat changes in the details of construction can be had which will fallwithin the scope of thev invention as claimed.

What we claim is l. A pulling devi-ce comprising a` main case consistingof an interiorly threaded head piece, a plurality of spaced pairs vofarms formed integral therewith and projecting forwardly therefrom, thearms of each pair arranged in spaced relation and each having the innerside of its forward end formed with a rib, an interiorly threaded bossformed integral with the forward end of each pair of arms at the outerportion thereof and disposed at right angles with respect to the forwardkedge of said arms, clamping means engaging the ribs of each pair ofarms, and a forcing member adj ustably engaging with said head piece andcoacting with said clamping means.

2. A pulling device comprising a main case consisting-of an interiorlythreaded head piece, a plurality of spaced pairs of arms formed integralvtherewith and projecting forwardly therefrom, the arms of each airarranged in spaced relation and each av ing lthe linner side. of itsvforward end formed Y withl a rib, an interiorly threaded boss formedintegralfwi-th `the forward end of eachpairef. arms at the outer portionthereof and Vdisposed at right angles with respect to the forward edgeof said arms, clamping means engaging the ribs of each ,pair of arms, ayforcing member adjustably engaging with said head piece and coactingwith said clamping means, and adjusting members mounted in said bossesfor said clamping means. n

A pulling device comprising a main case vconsisting of an interiorlythreaded head piece, a plurality of spaced pairs ofA arms formedvintegral therewith and projecting forwardly therefrom, the arms of eachpair arranged in rspaced relation and each having the inner side of itsforward end formed with a rib, an interi'orly threaded boss formedintegral with the forward end of each pair of arms at the` outer portionthereof and disposed at right angles with respect to the forward edge ofsaid arms, clamping means engaging the ribs of each pair of arms, aforcing member adjustably engaging with said head piece and coactingwith said clamping means, each of the arms of each pair merging into anarm of an adjacent pair, and brace members for connecting said bossestogether.

4. A pulling device comprising a main case consisting of an interiorlythreaded head piece, a plurality of spaced pairs of arms formed integraltherewith and pro-- jecting forwardly therefrom, the arms of each pairarranged in spaced relation and each having the inner side of itsforward end formed with a rib, an interiorly threaded boss formedintegral with the 'forward end of each pair of arms at the outer porntion thereof and disposed at right angles with respectk to the forwardedge of said arms, clamping means engaging the ribs of leach pair ofarms, a forcing member adjustably engaging with said head piece andcoacting with said clampingfmeans, each of the arms of each pair merginginto an arm of an adjacent pair, brace members for connecting saidbosses together, and adjusting members carried by said bosses for saidclamping means.

5. A pulling device comprising a clamping element, adjustingmeans-therefor, `a

case consisting of an interiorly threaded. head piece, a plurality ofpairs of armsy formed integral therewith and projecting` forwardlytherefrom, the arms of each pair having their forward ends provided withopposed means for slidably connecting the clamping element therewith,means formed integral with each pair of arms at the forward end thereofand disposed at right angies with respect thereto for connectingVtherewith the adjusting means Yfor the lease consisting of aninteriorly threaded head piece7 a plurality of pairs or' arms formedintegral therewith and projecting forwardly therefrom, the arms of eachpair having their forward ends provided with opposed means :tor slidahlyconnecting the clamping element therewith7 means formed integral witheach pair ot arms at the forward end thereof and disposed at rightangles with respect thereto for connecting therewith the adjusting meansfor the clampingl element, and a forcing element threadedly engagingwith said head piece and provided with a centering means at its innerend.

7. A pulling device comprising a clamping element, an adjusting membertherefor, a forcing element, a case consisting of a head piece formedwith an opening having a Y threaded wall, a plurality ot spaced pairs ofarms `formed integral with and projecting forwardly from said headpiece, the arms of each pair arranged in spaced relation and havingtheir inner sides provided with means for slidaloly connecting theclamping element therewith, each of the arms of one pair merging into anarm of an adjacent pair, the arms ot one pair disposed at an angle withrespect to the arms of an adjacent pair, an interiorly threaded bossformed .integral with the `forward end of eachk pair of arms andextending at right angles with respect thereto and providing means forconnecting therewith the adjusting memher for the clamping element7 andsaid head piece providing means for threadedly connecting therewith theforcing element.

En testimony whereof, we atlix our signatures hereto.

BENJAl/HN E. ROBINSON. ROBERT A. TROBAUGH.

